Home / 5,213.55-7,187.28-3,222.99

Finding the Fourth Proportional to 5,213.55, 7,187.28 and 3,222.99

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Solution

The fourth proportional to 5,213.55, 7,187.28 and 3,222.99 is: 4,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.55 : 7,187.28 = 3,222.99 : x
  2. Step 2: Convert to fraction form
    5,213.55/7,187.28 = 3,222.99/x
  3. Step 3: Cross multiply
    5,213.55x = 7,187.28 × 3,222.99
  4. Step 4: Simplify right side
    5,213.55x = 23,164,531.57
  5. Step 5: Solve for x
    x = 23,164,531.57/5,213.55
  6. Step 6: Final answer
    x = 4,443.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.